نتایج جستجو برای: pituitary gland
تعداد نتایج: 110707 فیلتر نتایج به سال:
Eleven patients with Korean (epidemic) hemorrhagic fever were each studied three times with high-resolution CT in order to demonstrate necrosis of the pituitary gland and to correlate the CT findings with the patients' pituitary function and visual fields. Seven of the 11 patients showed varying degrees of progressive decrease in the height of the pituitary gland: one severe, two moderate, and ...
endocrine tissue, and contains a number of nuclei that have either a direct (neuronal) or indirect (vascular) communication with the pituitary gland. The pituitary gland is similarly a composite of endocrine and nervous tissue that is located at the base of the brain and connected to the hypothalamus by the pituitary stalk. It weighs less than 1 g under normal circumstances, and lies within the...
BACKGROUND AND PURPOSE Although resection of a tumor by trans-sphenoidal surgery is considered the criterion standard for successful surgical treatment of functional pituitary microadenoma, MR imaging occasionally fails to visualize and identify the tumor and supplementary imaging modalities are necessary. We tested the possibility of dynamic contrast-enhanced multisection CT of the pituitary g...
Introduction: is an endocrine gland located upon the hypophysial fossa of sphenoid bone in center middle cranial and surrounded by a small bony cavity (sella turcica). Radiological procedures are playing essential role present diagnostic pituitary gland. Pituitary tumours can now be visualized more accurately due to continued improvements magnetic resonance imaging (MRI) techniques with gadolin...
PURPOSE The aim of this study was to compare the behavioral uptake of a normal gland and a pituitary adenoma and to assess the ability to diagnose pituitary adenoma by means of technetium-99m-hexakis-2-methoxy-isobutyl-isonitrile (MIBI) single photon emission computed tomography (SPECT). METHODS The study included 15 patients with pituitary adenomas (mean age = 44.0 years, range 19-63) and 15...
A case of primary hypothyroidism accompanied by pituitary enlargement and pituitary dysfunction is documented. A 27-year-old woman was admitted to our hospital for further examination of pituitary enlargement. Endocrinological examination revealed that she had primary hypothyroidism. Her TSH level in serum was elevated to more than 300 microU/ml. She also had pituitary dysfunction such as hyper...
When irido-corneal complexes (ICC's) from eyes of adult newts (Notophthalmus viridescens) are cultured on top of pituitary glands they produce advanced lens regenerates in up to 90% of the cases (this report and Connelly et al., '73). To determine if the iris and pituitary gland must be in direct contact with each other in order to produce this enhancement of lens regeneration, ICC's were cultu...
It is now well established that lipocortin 1 (LC1) plays an important role as a mediator of early delayed glucocorticoid feedback action in the hypothalamo-hypophysial system. In both the hypothalamus and anterior pituitary gland, LC1 mimics some of the actions of glucocorticoids; moreover, glucocorticoids stimulate the synthesis of LC1 and cause the translocation of intracellular LC1 to the ou...
Major hormonal changes emerge during pregnancy. The pituitary gland is one of the most affected organs with altered anatomy and physiology. The pituitary gland is enlarged as a result of lactotroph hyperplasia. Due to physiological changes in the pituitary and target hormone levels, binding globulins, and placental hormones, hormonal evaluation becomes more complex in pregnant women. As a conse...
background although neuregulin-1 (nrg1)and its receptors have been indicated at the mrna level in partial human endocrine organs and its functional roles have been evaluated in vitro, their morphological distribution in higher animals are not fully studied. the present research focused on expression of nrg1 and its main receptors erbb2 and erbb4 in main endocrine organs of the rhesus monkey. ma...
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